net: sk_sleep() helper

Define a new function to return the waitqueue of a "struct sock".

static inline wait_queue_head_t *sk_sleep(struct sock *sk)
{
	return sk->sk_sleep;
}

Change all read occurrences of sk_sleep by a call to this function.

Needed for a future RCU conversion. sk_sleep wont be a field directly
available.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index ca6b2ad1c3fc..b406d3eff53a 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -567,7 +567,7 @@ static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flag
         BT_DBG("sk %p timeo %ld", sk, timeo);
 
         /* Wait for an incoming connection. (wake-one). */
-        add_wait_queue_exclusive(sk->sk_sleep, &wait);
+        add_wait_queue_exclusive(sk_sleep(sk), &wait);
         while (!(ch = bt_accept_dequeue(sk, newsock))) {
                 set_current_state(TASK_INTERRUPTIBLE);
                 if (!timeo) {
@@ -590,7 +590,7 @@ static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flag
                 }
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
 
         if (err)
                 goto done;